Coupling for pipes



FIG. 1 is a top view of a coupling for pipes, hollow cylindricalstructure, showing my new design;

FIG. 2 is a perspective view thereof;

FIG. 3 is an front view thereof;

FIG. 4 is a front view of a coupling for pipes, reducing coupling,showing my new design;

FIG. 5 is a top view thereof;

FIG. 6 is a perspective view thereof;

FIG. 7 is a perspective view of a coupling for pipes, hollow cylindricalstructure with both ends identical, showing my new design;

FIG. 8 is a front view thereof;

FIG. 9 is a front view of a coupling for pipes, hollow cylindricalstructure with both ends identical, showing my new design; and,

FIG. 10 is a perspective view thereof.

CLAIM The ornamental design for a coupling for pipes, as shown anddescribed.